这个是最新官方说法。摘录如下: $ z7 n" R- A6 j9 w7 o % S' h- i2 t/ w# o1 {Not all children will get away with only one shot, however. The Public Health Agency's revised guidelines are as follows: & A- Z/ L# p4 b0 T2 w8 N+ W% v/ G0 \8 M/ C, |; j
- Children between six months and under three years old should still receive two half-doses of adjuvanted H1N1 vaccine, at least 21 days apart. 3 E6 d' {4 w% L" v) ^2 k* s
( o' x6 t9 ~6 z% G9 a- Children between three years and nine years old with chronic health conditions should get their first half-dose as quickly as possible. They should get a second half-dose at least 21 days later. O# Z$ w; l! F3 v/ b
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- Healthy kids between three years and nine years old should only receive a half-dose of H1N1 vaccine. They don't need to come back for a second shot.
alberta health 的说法 3 v. S! f( v @7 ?- `1 N http://www.albertahealthservices.ca/901.asp#children + K+ J3 y! A/ w3 u+ ]% s % G4 |+ r5 @, _6 i6 N6 i% Y9 [7 RWill children need one or two vaccines? & M1 ^6 T4 H+ j2 l0 ?3 A - {3 Y* P* c) t2 B- a! [2 bThe Public Health Agency of Canada (Nov 12, 2009) recommends: `7 a4 z. X( ^) S u T( c ! }7 @/ b# h; |! J( ` * Children from six months up to and less than three years old receive two half-doses of the H1N1 adjuvanted vaccine. There should be a minimum of 21 days between the two half doses.' h( R4 F& ]5 N) w' L3 V
* Healthy children with no chronic health problems aged three years to under 10 years should receive one half dose of the H1N1 adjuvanted vaccine.5 s/ u8 \& j. L3 A1 V6 |% Z
* Children aged three to under 10 years with chronic medical conditions should receive two half doses of adjuvanted H1N1 vaccine. There should be a minimum of 21 days between the two half doses.; F. X4 ]0 @+ \+ h* {
* All children aged 10 years and older should receive one full dose adjuvanted vaccine.